I can do pairing with the MS blue tooth device, but how can I do the synchronization ? I mean, there is no icon in the taskbar since I use the USB cradle at work....Anyone an idea ? Do I miss the point ?

you have to pair the device and check "connect without confirmation" in the bluetooth settings on the fone.
Then check all the bluetooth-serial-ports in your connection manager in the systemtray.

Connect the serial port in the bluetooth-neighborhood on your pc. You'll get a error-message, but the connection manager will connect anyway...

Greets

Michael

I've the DLink BT120 bluetooth device.
I've experienced the exact same scenario as you have only that for every time the PC/bluetooth thingy and the phone pair they unpair after a few seconds and so it goes on and on forever pairing and unpairing.
This is extremely frustrating....